Apology rejected. I'm glad you still enjoy Firefox, but I'm not lying about my experience. So many websites kept breaking constantly, and in extremely bad ways.
Things like, the final step of a 40 page government form failing, and I then need to call them and wait on hold for 90 minutes for them to fix it. Or, payments being charged, but not receiving the product; again having to call support. Or more subtle things, like specific features on websites not working, weird canvas glitches, you get the idea.
In comparison, the amount of problems I've had in Vivaldi is zero, compared to daily. I cannot recommend Firefox to average users anymore. I think using Firefox is admirable, but it's increasingly similar to trying to play games on Linux without Proton. Good luck.